Support x86 AVX 256-bit instructions built-ins. Right now support all of them, but
as soon as we properly codegen the simple vector operations, remove the
unnecessary built-ins/intrinsics from clang and llvm. Also add tests for the new
built-ins



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110096 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed